Graphic user interface for a display screen



FIG. 1 is a front view of a graphical user interface for a display screen showing our new design; and,

FIG. 2 is a front view of a second embodiment thereof.

The broken line showing of the display screen and characters form no part of the claimed design. The broken line showing of the “rain” in FIG. 2 is claimed subject matter. 

The ornamental design for a graphic user interface for a display screen, as shown and described. 